2.You can either search for the module via Magento Connect and paste extension key http://connect20.magentocommerce.com/community/ProvideSupport_Live_Chat to install or upload the module package directly. Provide Support Live Chat module will appear in the list of available extensions after the installation has been completed.

3.To proceed with integration, click 'Provide Support Live Chat' link in your admin panel menu and choose there Settings.